This bug was fixed in the package linux - 5.8.0-16.17

---------------
linux (5.8.0-16.17) groovy; urgency=medium

  * groovy/linux: 5.8.0-16.17 -proposed tracker (LP: #1891233)

  * Miscellaneous Ubuntu changes
    - hio -- Update to use bio_{start,end}_io_acct with 5.8+
    - Enable hio driver
    - [Packaging] Temporarily disable building doc package contents

linux (5.8.0-15.16) groovy; urgency=medium

  * groovy/linux: 5.8.0-15.16 -proposed tracker (LP: #1891177)

  * Miscellaneous Ubuntu changes
    - SAUCE: Documentation: import error c_funcptr_sig_re, c_sig_re (sphinx-
      doc/sphinx@0f49e30c)

linux (5.8.0-14.15) groovy; urgency=medium

  * groovy/linux: 5.8.0-14.15 -proposed tracker (LP: #1891085)

  * Packaging resync (LP: #1786013)
    - [Packaging] update helper scripts

  * msg_zerocopy.sh in net from ubuntu_kernel_selftests failed (LP: #1812620)
    - selftests/net: relax cpu affinity requirement in msg_zerocopy test

  * Fix missing HDMI/DP Audio on an HP Desktop (LP: #1890441)
    - ALSA: hda/hdmi: Add quirk to force connectivity

  * Add initial audio support for Lenovo ThinkStation P620 (LP: #1890317)
    - ALSA: usb-audio: Add support for Lenovo ThinkStation P620

  * Fix IOMMU error on AMD Radeon Pro W5700 (LP: #1890306)
    - PCI: Mark AMD Navi10 GPU rev 0x00 ATS as broken

  * Enlarge hisi_sec2 capability (LP: #1890222)
    - crypto: hisilicon - update SEC driver module parameter

  * Miscellaneous Ubuntu changes
    - [Config] Re-enable signing for ppc64el

 -- Seth Forshee <seth.fors...@canonical.com>  Tue, 11 Aug 2020 15:32:58
-0500

** Changed in: linux (Ubuntu)
       Status: Triaged => Fix Released

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https://bugs.launchpad.net/bugs/1855339

Title:
  CONFIG_LEGACY_PTYS should be disabled

Status in linux package in Ubuntu:
  Fix Released

Bug description:
  Legacy BSD PTYs have been replaced by UNIX 98 PTYs a long time ago.
  Disable legacy BSD PTY support as it is no longer needed.

  This config option is recommended by the Kernel Self Protection
  Project[1] and a 2019 study performed by Capsule 8 shows that it is
  enabled in some other major distro kernels[2].

  [1] 
https://kernsec.org/wiki/index.php/Kernel_Self_Protection_Project/Recommended_Settings
  [2] 
https://capsule8.com/blog/millions-of-binaries-later-a-look-into-linux-hardening-in-the-wild/

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